libceph: mon0 [d::]:6789 connect error
libceph: connect [d::]:6789 error -99
libceph: mon0 [d::]:6789 connect error
libceph: connect [d::]:6789 error -99
libceph: mon0 [d::]:6789 connect error
WARNING: CPU: 0 PID: 6027 at net/ceph/messenger.c:3101 clear_standby+0x12f/0x160 net/ceph/messenger.c:3101
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6027 Comm: syz-executor524 Not tainted 4.19.0-rc6+ #46
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993
RIP: 0010:clear_standby+0x12f/0x160 net/ceph/messenger.c:3101
Code: de e8 a5 22 f0 f9 48 85 db 0f 84 39 ff ff ff e8 67 21 f0 f9 0f 0b e9 2d ff ff ff e8 db 81 33 fa e9 67 ff ff ff e8 51 21 f0 f9 <0f> 0b eb a5 e8 e8 81 33 fa e9 f6 fe ff ff 4c 89 ef e8 db 81 33 fa
RSP: 0018:ffff8801c370f640 EFLAGS: 00010293
RAX: ffff8801c3dac240 RBX: ffff8801c070dae8 RCX: ffffffff878e93d3
RDX: 0000000000000000 RSI: ffffffff878e942f RDI: 0000000000000007
RBP: ffff8801c370f658 R08: ffff8801c3dac240 R09: ffffed00380e1b8d
R10: ffff8801c370f658 R11: ffff8801c070dc6f R12: 0000000000000001
R13: ffff8801c070dc20 R14: ffff8801c47b7b10 R15: ffff8801c370f728
 ceph_con_send+0x460/0x600 net/ceph/messenger.c:3136
 __send_prepared_auth_request+0x155/0x1b0 net/ceph/mon_client.c:111
 __open_session+0x3cd/0x550 net/ceph/mon_client.c:199
 ceph_monc_open_session+0x193/0x350 net/ceph/mon_client.c:448
 __ceph_open_session+0xe2/0x810 net/ceph/ceph_common.c:705
 ceph_real_mount fs/ceph/super.c:900 [inline]
 ceph_mount+0x11de/0x1b80 fs/ceph/super.c:1084
 mount_fs+0xae/0x31d fs/super.c:1261
 vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2457 [inline]
 do_mount+0x581/0x31f0 fs/namespace.c:2787
 ksys_mount+0x12d/0x140 fs/namespace.c:3003
 __do_sys_mount fs/namespace.c:3017 [inline]
 __se_sys_mount fs/namespace.c:3014 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3014
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441049
Code: e8 6c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffcfbd60568 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000441049
RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040
RBP: 000000000001666a R08: 0000000020000140 R09: 0000000000000009
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..